integro_differential_operator

1.With the aid of the projective operator technique, an integro-differential equation for the porbability density and an approximate equation for the mean first-passage time (MFPT) have been derived.
推导了平均第一通过时间（MFPT）方程，并在弱噪声和短相关近似下，得出方程的解；通过数值分析阐明了平均第一通过时间和噪声关联时间之间的联系。
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